Concept explainers
(a)
Interpretation: We have to identify the amino acid coded for the CUG RNA codon.
Concept Introduction: A codon represents the sequence of three DNA or RNA
(b)
Interpretation: We have to identify the amino acid coded for UCC RNA codon.
Concept Introduction: A codon represents the sequence of three DNA or RNA nucleotides which are related to a specific amino acid. The mRNA codon carries the message specifying for an amino acid and tRNA transfers that amino acid to the growing protein chain.
(c)
Interpretation: We have to identify the amino acid coded for GGU RNA codon.
Concept Introduction: A codon represents the sequence of three DNA or RNA nucleotides which are related to a specific amino acid. The mRNA codon carries the message specifying for an amino acid and tRNA transfers that amino acid to the growing protein chain.
(d)
Interpretation: We have to identify the amino acid coded for AGG RNA codons.
Concept Introduction: A codon represents the sequence of three DNA or RNA nucleotides which are related to a specific amino acid. The mRNA codon carries the message specifying for an amino acid and tRNA transfers that amino acid to the growing protein chain.
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Basic Chemistry
- What type of RNA has the shortest lifetime in cells?arrow_forwardDescribe the experiment that allowed researchers to first identify the codon for a specific amino acid.arrow_forwardUsing the information in Table 22-2, determine what amino acid is coded for by each of the following codons. a. GUA b. CCC c. CAC d. CCAarrow_forward
- The codon UAA stops protein synthesis. Why does the sequence UAA in the following stretch of mRNA not cause any problems?arrow_forwardWrite the base sequence for the mRNA that would be formed during transcription from the DNA strand with the base sequence GCCATATTG.arrow_forwardWhich of the following statements about the genetic code are true and which are false? Correct each false statement. a.Each codon is composed of four bases. b.Some amino acids are represented by more than one carbon. c.All codons represent an amino acid. d.Each living species is thought to have its own unique genetic code. e.The codon AUG at the beginning of a sequence is a signal for protein synthesis to begin at that codon. f.It is not known if the code contains stop signals for protein synthesis.arrow_forward
- Consider the following DNA base sequence 3TTAATA5 a. What dipeptide is formed from the transcription and translation of this DNA segment? b. What dipeptide is formed if a DNA point mutation converts ATA to ATG? c. What dipeptide is formed if a DNA point mutation converts ATA to AGA? d. What dipeptide is formed if a DNA point mutation converts TTA to TTT?arrow_forwardExplain why the base sequence AGAC could not be a codon.arrow_forward
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